PROPAGATION AND DISTRIBUTION OF FOOD FISHES, FISCAL YEAR 1940 ! 
By Guenn C. Leacu, Chief, M. C. Jamus, Assistant Chief, and E. J. Dov@uass, 
Superintendent of Distribution, Division of Fish Culture 
CONTENTS 
Page 
BOONE HOU? <---<-— AEE eee Eee ede ek kn 059 
SeEeHEREO NP AUC. eee 556 
nnn eee ee eo 558 
GUI ACuOnaculVviicn== == ees ee ot UE sh J lk 5 eee 559 
Cooperation with other conservation agencies_-_______._______________ 560 
Assignments of fish and fish eggs to States, Territories, and foreign coun- 
a ne ea Sw ee 566 
OPP cD TO ree ARS) c-Si es | 569 
CANCE ee ee es 577 
MU GHOMEONeLiMONS eeenene es. 2 ee SS le bl. eee 578 
Mcminie uci InSPeCleser teeta ae et as alii ee) 578 
WU Tees) “TEX Stare oS Se a a 2 ee ee ee 580 
feo bees SD CCleN ene eee ee 582 
AUAOrGnIoOus SPecCies, Atlamtic COast_—-2---_. L/L] ee a 583 
inc MS DrOpAra ions see = eS Coe) al 2 SL ee 584 
Pee ae ou Lin LemunuOny, sa 226 mee os | ees oo ete bee ee 584 
Newishnelancd: GrOMmBtslIONS.- =. 4.242. aoe ee 588 
Combinapion troutjand pondtish stations..__._.........___-__ a8. 5S0 
Appalachian and Blue Ridge trout stations_-----_---...._._---..- 592 
ets ncIONS see eee ee TT Tite Pe il a ee ee 593 
Upper Mississippi River Wildlife and Fish Refuge_________________ 598 
_ PSPS 2 SSeS ae Se. See ee re ee ens Sea nee 599 
Pein OPCT AMON Cees 2 eB 600 
Summary, by States, of the distribution of fish, fiscal year 1940____-____- 601 
INTRODUCTION 
During the fiscal year 1940 the fish and eggs released from Federal 
fish hatcheries totaled approximately 617,300,000 less than in the pre- 
vious year. The 1940 output amounted to 7,407,246,940; the reduc- 
tion being 7.7 percent. 
There was no curtailment of activities to account for this recession. 
However, with certain groups of fish the hatchery activities are goy- 
erned by the same factors which cause fluctuations in the natural 
populations. Hence, hatchery production cannot be geared to a defi- 
nite predetermined level, and all fish-culturists recognize that hatchery 
output will vary to a moderate degree from year to year. The nature 
of these fluctuations is discussed elsewhere in this report. 
The older conception that artificial propagation and distribution of 
fish is a guaranteed stimulus for greater abundance and an assurance 
against depletion has been modified. The current attitude is to view 
the hatchery production as a supplement to natural production, or as 
araw material upon which management practices can be based. This 
view imposes an obligation to give more careful consideration to all 
proposals for the extension of fish-cultural work into new fields, and 
1 Administrative Report No. 42, Appendix IV to the Report of the U. S. Commissioner of Fisheries for 
the fiscal year 1940. Approved for publication May 19, 1941. BBE 
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